ADAPTIVE DEVICE FOR VIBRATION DAMPING Russian patent published in 2016 - IPC G10K11/178 

FIELD: construction.

SUBSTANCE: device comprises sensors of period of revolution of mechanism shafts, equal number of compensating sources and reference receivers, installed on a foundation structure, an electronic tract of a damping system, made of an analyser, a discrete integrator, a synthesizer, a shaper of exponential functions, a period meter. Besides, outputs of sensors of period of revolution of mechanism shafts are connected to inputs of the shaper of exponential functions and inputs of the period meter. Outputs of reference receivers are connected to the first inputs of the analyser. The output of the period meter is connected to the second input of the analyser. The output of the shaper of exponential functions is connected to the third input of the analyser and the first input of the synthesizer. Besides, the device comprises a modal analyser, a modal synthesizer, a switchboard and a calibrator. At the same time the output of the analyser is connected to the input of the modal analyser. The output of the modal analyser is connected in parallel with the first input of the discrete integrator and the input of the calibrator, the first output of which is connected to the second input of the discrete integrator, and the second output is connected to the first input of the switchboard. The output of the discrete integrator is connected to the second input of the switchboard, which in its turn is serially connected with the input of the modal synthesizer and the second input of the synthesizer, the outputs of which are connected to the inputs of compensating sources.

EFFECT: increased efficiency of vibration damping in foundation structures excited by rotor machines and mechanisms.

1 dwg